SPN 102 FMI 18 CM2350

[Rawze]

I get for SPN:102,FMI:18 -- cummins fault code 125 -- Intake Manifold 1 Pressure - Data Valid But Below Normal Operating Range - Moderately Severe Level. Intake manifold pressure is below the minimum operating limit.

FIS Wrote:Possible causes of this fault are:


* Leaks in the air intake system between the turbocharger and intake manifold
* A damaged intake manifold pressure sensor
* A damaged barometric pressure sensor
* Restriction in the charge-air cooler
* Leaks or restrictions in the exhaust gas recirculation system plumbing
* Fuel inlet restriction too high (normally caused by a restricted fuel filter)
* Restriction in the air filter
* Restriction in the exhaust system.

* bad intake pressure sensor?
* Check your barro sensor.
* Check the crank case filter to ensure it is not clogging up
* Check the air filter to ensure it is not stuffed up.
* Chack the CAC for restrictions.

* Pressurize the whole engine and look for air leaks.